for i in *.htm
do
  if slmember "$i" "axis* sa* yymm* colorsub* gifresize* scatterplot0a*" ; then
    continue
  fi
  BASE=`strchop $i 4`
  echo "$i.."
  ../plsrc12/pl -png $i -scale 0.3 -o ../thumbpng/$BASE.png -showargs
done
